Medium MediumMedium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.

DHW Production DHW ProductionDHW (Domestic Hot Water) is potable water for uses other than space heat. Some boilers are able to provide DHW "out of the box", while others can do so with the purchase of optional accessories.

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Product Description

Specs

Reviews

2

Product Q&A

Recommended Accessories

How-To Articles

Manuals

Product Description

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Features

Features

Over the last 130 years, Weil-McLain has built a reputation of designing some of the most reliable boilers in the marketplace. Their dedication to producing lasting heating solutions is seen in every boiler they make. The EG is one of Weil-McLain's most versatile natural draft boilers. It is available in natural gas or liquid propane for both hot water and steam applications. The EG-35-S-PIDN is a natural gas steam boiler with Annual Fuel Utilization Efficiency of 82.9% AFUE. The EG is well suited for new construction, and it makes an excellent replacement boiler as well. Weil-McLain has used cast-iron for the EG's heat exchanger, a material known for its long life. The blend of durability, efficiency, and versatility in the EG makes it an attractive boiler for all systems.

Venting Improvements

By utilizing a horizontal-to-vertical draft hood, Weil-McLain has avoided the need for bulky traditional draft hoods. An included automatic vent damper provides ideal combustion conditions to reduce fuel use and improve efficiency.

Efficiency-Boosting Insulation

Heat retention is critical to energy efficiency. Heat leakage represents energy use without any comfort gains. An extended, insulated steel jacket prevents heat from escaping the EG and improves the efficiency.

Medium MediumMedium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.

Steam

Heat Exchanger Material

Cast Iron

Fuel Type Fuel TypeTo create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.

Vent Type Vent TypeProducts that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.

Chimney Vent

DHW Production DHW ProductionDHW (Domestic Hot Water) is potable water for uses other than space heat. Some boilers are able to provide DHW "out of the box", while others can do so with the purchase of optional accessories.

No

Modulating/Staging Modulating/StagingStages are unique speeds or levels that equipment can operate at. More stages allow for better fine-tuned control of output, which improves comfort and efficiency. Modulating equipment can operate across a range of levels, giving the highest level of fine-tuned control. Learn More

Single Stage

Mount Type

Floor

Minimum Altitude

0 Feet

Maximum Altitude

2000 Feet

Includes Pump

No

Assembly Type

Knockdown

UPC

0672619195080

Performance

AFUE AFUEAFUE (Annual Fuel Utilization Efficiency) measures the efficiency of combustion equipment over the entire heating season, and is calculated by dividing the amount of energy that is actually heating your home by the total energy contained in the fuel used by the boiler/furnace. Learn More

82 %

Maximum Input Capacity Maximum Input CapacityThe Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.

100000 BTU

DOE Heating Capacity DOE Heating CapacityAlso referred to as Gross Output, this is the output of a boiler after accounting for combustion efficiency. We recommend sizing hot water boilers based on the DOE Heating Capacity.

83000 BTU

Net I=B=R Capacity Net I=B=R CapacityI=B=R, also referred to as Net Output or AHRI Capacity, is the rated heat output of a boiler after accounting for combustion efficiency, piping loss, and an extra pickup factor. We recommend sizing steam boilers based on the I=B=R rating.

62000 BTU

Ultra Low NOx Emissions Ultra Low NOx EmissionsNOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Ultra Low NOx appliances emit less than 10-14 ng/J (nanogram per Joule) of NOx. Learn More

No

Electrical Data

Phase

1

Frequency

60 Hz

Dimensions

Flue Connection Size

5 Inches

Gas Connection Size

1/2 Inch

Supply Connection

3 Inches

Return Connection

2 1/2 Inches

Product Height

33 3/4 Inches

Product Width

17 Inches

Product Depth

27 5/8 Inches

Product Weight

380 Pounds

Shipping Width

32 Inches

Shipping Height

39 Inches

Shipping Depth

32 Inches

Shipping Weight

380 Pounds

Certifications

Country of Origin

United States

CSA Listed

Yes

ASME Certified

Yes

AHRI Certified

Yes

AHRI Reference Number

2101583

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

2 Years

Heat Exchanger Warranty

10 Years

321811095 Specifications+

General Information

Product Line

EG

Dimensions

Product Weight

430 Pounds

Shipping Weight

430 Pounds

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

381800837 Specifications+

General Information

Product Line

EG

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

381800828 Specifications+

General Information

Product Line

EG

Dimensions

Product Weight

35 Pounds

Shipping Weight

45 Pounds

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

381800823 Specifications+

General Information

Product Line

EG

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

381800475 Specifications+

General Information

Product Line

EG

Vent Type Vent TypeProducts that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.

Chimney Vent

Dimensions

Primary Vent Pipe Diameter

5 Inches

Product Weight

4 Pounds

411800075 Specifications+

General Information

Product Line

EG

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

450021256 Specifications+

General Information

Product Line

EG

Vent Type Vent TypeProducts that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.

Chimney Vent

Dimensions

Product Weight

7.5 Pounds

Features

Features

Over the last 130 years, Weil-McLain has built a reputation of designing some of the most reliable boilers in the marketplace. Their dedication to producing lasting heating solutions is seen in every boiler they make. The EG is one of Weil-McLain's most versatile natural draft boilers. It is available in natural gas or liquid propane for both hot water and steam applications. The EG-35-S-PIDN is a natural gas steam boiler with Annual Fuel Utilization Efficiency of 82.9% AFUE. The EG is well suited for new construction, and it makes an excellent replacement boiler as well. Weil-McLain has used cast-iron for the EG's heat exchanger, a material known for its long life. The blend of durability, efficiency, and versatility in the EG makes it an attractive boiler for all systems.

Venting Improvements

By utilizing a horizontal-to-vertical draft hood, Weil-McLain has avoided the need for bulky traditional draft hoods. An included automatic vent damper provides ideal combustion conditions to reduce fuel use and improve efficiency.

Efficiency-Boosting Insulation

Heat retention is critical to energy efficiency. Heat leakage represents energy use without any comfort gains. An extended, insulated steel jacket prevents heat from escaping the EG and improves the efficiency.

Medium MediumMedium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.

Steam

Heat Exchanger Material

Cast Iron

Fuel Type Fuel TypeTo create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.

Vent Type Vent TypeProducts that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.

Chimney Vent

DHW Production DHW ProductionDHW (Domestic Hot Water) is potable water for uses other than space heat. Some boilers are able to provide DHW "out of the box", while others can do so with the purchase of optional accessories.

No

Modulating/Staging Modulating/StagingStages are unique speeds or levels that equipment can operate at. More stages allow for better fine-tuned control of output, which improves comfort and efficiency. Modulating equipment can operate across a range of levels, giving the highest level of fine-tuned control. Learn More

Single Stage

Mount Type

Floor

Minimum Altitude

0 Feet

Maximum Altitude

2000 Feet

Includes Pump

No

Assembly Type

Knockdown

UPC

0672619195080

Performance

AFUE AFUEAFUE (Annual Fuel Utilization Efficiency) measures the efficiency of combustion equipment over the entire heating season, and is calculated by dividing the amount of energy that is actually heating your home by the total energy contained in the fuel used by the boiler/furnace. Learn More

82 %

Maximum Input Capacity Maximum Input CapacityThe Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.

100000 BTU

DOE Heating Capacity DOE Heating CapacityAlso referred to as Gross Output, this is the output of a boiler after accounting for combustion efficiency. We recommend sizing hot water boilers based on the DOE Heating Capacity.

83000 BTU

Net I=B=R Capacity Net I=B=R CapacityI=B=R, also referred to as Net Output or AHRI Capacity, is the rated heat output of a boiler after accounting for combustion efficiency, piping loss, and an extra pickup factor. We recommend sizing steam boilers based on the I=B=R rating.

62000 BTU

Ultra Low NOx Emissions Ultra Low NOx EmissionsNOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Ultra Low NOx appliances emit less than 10-14 ng/J (nanogram per Joule) of NOx. Learn More

No

Electrical Data

Phase

1

Frequency

60 Hz

Dimensions

Flue Connection Size

5 Inches

Gas Connection Size

1/2 Inch

Supply Connection

3 Inches

Return Connection

2 1/2 Inches

Product Height

33 3/4 Inches

Product Width

17 Inches

Product Depth

27 5/8 Inches

Product Weight

380 Pounds

Shipping Width

32 Inches

Shipping Height

39 Inches

Shipping Depth

32 Inches

Shipping Weight

380 Pounds

Certifications

Country of Origin

United States

CSA Listed

Yes

ASME Certified

Yes

AHRI Certified

Yes

AHRI Reference Number

2101583

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

2 Years

Heat Exchanger Warranty

10 Years

321811095 Specifications+

General Information

Product Line

EG

Dimensions

Product Weight

430 Pounds

Shipping Weight

430 Pounds

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

381800837 Specifications+

General Information

Product Line

EG

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

381800828 Specifications+

General Information

Product Line

EG

Dimensions

Product Weight

35 Pounds

Shipping Weight

45 Pounds

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

381800823 Specifications+

General Information

Product Line

EG

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

381800475 Specifications+

General Information

Product Line

EG

Vent Type Vent TypeProducts that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.

Chimney Vent

Dimensions

Primary Vent Pipe Diameter

5 Inches

Product Weight

4 Pounds

411800075 Specifications+

General Information

Product Line

EG

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

450021256 Specifications+

General Information

Product Line

EG

Vent Type Vent TypeProducts that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.

Chimney Vent

Dimensions

Product Weight

7.5 Pounds

Product Specs

+−

Specifications

General Information

Product Line

EG

Medium MediumMedium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.

Steam

Heat Exchanger Material

Cast Iron

Fuel Type Fuel TypeTo create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.

Vent Type Vent TypeProducts that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.

Chimney Vent

DHW Production DHW ProductionDHW (Domestic Hot Water) is potable water for uses other than space heat. Some boilers are able to provide DHW "out of the box", while others can do so with the purchase of optional accessories.

No

Modulating/Staging Modulating/StagingStages are unique speeds or levels that equipment can operate at. More stages allow for better fine-tuned control of output, which improves comfort and efficiency. Modulating equipment can operate across a range of levels, giving the highest level of fine-tuned control. Learn More

Single Stage

Mount Type

Floor

Minimum Altitude

0 Feet

Maximum Altitude

2000 Feet

Includes Pump

No

Assembly Type

Knockdown

UPC

0672619195080

Performance

AFUE AFUEAFUE (Annual Fuel Utilization Efficiency) measures the efficiency of combustion equipment over the entire heating season, and is calculated by dividing the amount of energy that is actually heating your home by the total energy contained in the fuel used by the boiler/furnace. Learn More

82 %

Maximum Input Capacity Maximum Input CapacityThe Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.

100000 BTU

DOE Heating Capacity DOE Heating CapacityAlso referred to as Gross Output, this is the output of a boiler after accounting for combustion efficiency. We recommend sizing hot water boilers based on the DOE Heating Capacity.

83000 BTU

Net I=B=R Capacity Net I=B=R CapacityI=B=R, also referred to as Net Output or AHRI Capacity, is the rated heat output of a boiler after accounting for combustion efficiency, piping loss, and an extra pickup factor. We recommend sizing steam boilers based on the I=B=R rating.

62000 BTU

Ultra Low NOx Emissions Ultra Low NOx EmissionsNOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Ultra Low NOx appliances emit less than 10-14 ng/J (nanogram per Joule) of NOx. Learn More

No

Electrical Data

Phase

1

Frequency

60 Hz

Dimensions

Flue Connection Size

5 Inches

Gas Connection Size

1/2 Inch

Supply Connection

3 Inches

Return Connection

2 1/2 Inches

Product Height

33 3/4 Inches

Product Width

17 Inches

Product Depth

27 5/8 Inches

Product Weight

380 Pounds

Shipping Width

32 Inches

Shipping Height

39 Inches

Shipping Depth

32 Inches

Shipping Weight

380 Pounds

Certifications

Country of Origin

United States

CSA Listed

Yes

ASME Certified

Yes

AHRI Certified

Yes

AHRI Reference Number

2101583

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

2 Years

Heat Exchanger Warranty

10 Years

321811095 Specifications+

General Information

Product Line

EG

Dimensions

Product Weight

430 Pounds

Shipping Weight

430 Pounds

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

381800837 Specifications+

General Information

Product Line

EG

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

381800828 Specifications+

General Information

Product Line

EG

Dimensions

Product Weight

35 Pounds

Shipping Weight

45 Pounds

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

381800823 Specifications+

General Information

Product Line

EG

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

381800475 Specifications+

General Information

Product Line

EG

Vent Type Vent TypeProducts that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.

Chimney Vent

Dimensions

Primary Vent Pipe Diameter

5 Inches

Product Weight

4 Pounds

411800075 Specifications+

General Information

Product Line

EG

Certifications

Country of Origin

United States

Warranty Information

Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More

1 Year

450021256 Specifications+

General Information

Product Line

EG

Vent Type Vent TypeProducts that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.

Chimney Vent

Dimensions

Product Weight

7.5 Pounds

Reviews

+−

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Product Q&A

(2)

+−

Search Product Q&A's Answered by Bob, the Heating Product Expert

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+−

Does it come in one piece so that all I do is just hooking up?

Po B.

from New York

October 25, 2016

Answer

This is a knockdown boiler the requires on-site assembly assembled. Weil-McLain offers select models within the EG-Series in a packaged version that requires only limited on-site assembly.

+−

What is the difference between the EG-65-S-PIDN-T and EG-65-S-PIDN?

Earl

from New York

December 18, 2015

Answer

The '-T' at the end of some EG-Series model numbers indicates that the boiler is configured to accept a tankless domestic hot coil. This coil will allow you to use heat from the boiler to heat water for domestic use, but will also require that your boiler remain hot at all times, resulting in higher energy use. Be aware that the '-T' only indicates that the boiler as the necessary openings to allow installation of the coil, and the coil must be purchased separately. Models without the '-T' cannot use the tankless coil.